This is a note to let you know that I've just added the patch titled
efi: Correct Macmini DMI match in uefi cert quirk
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
efi-correct-macmini-dmi-match-in-uefi-cert-quirk.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From bab715bdaa9ebf28d99a6d1efb2704a30125e96d Mon Sep 17 00:00:00 2001
From: Orlando Chamberlain <redecorating@xxxxxxxxxxxxxx>
Date: Thu, 29 Sep 2022 11:49:56 +0000
Subject: efi: Correct Macmini DMI match in uefi cert quirk
From: Orlando Chamberlain <redecorating@xxxxxxxxxxxxxx>
commit bab715bdaa9ebf28d99a6d1efb2704a30125e96d upstream.
It turns out Apple doesn't capitalise the "mini" in "Macmini" in DMI, which
is inconsistent with other model line names.
Correct the capitalisation of Macmini in the quirk for skipping loading
platform certs on T2 Macs.
Currently users get:
------------[ cut here ]------------
[Firmware Bug]: Page fault caused by firmware at PA: 0xffffa30640054000
WARNING: CPU: 1 PID: 8 at arch/x86/platform/efi/quirks.c:735 efi_crash_gracefully_on_page_fault+0x55/0xe0
Modules linked in:
CPU: 1 PID: 8 Comm: kworker/u12:0 Not tainted 5.18.14-arch1-2-t2 #1 4535eb3fc40fd08edab32a509fbf4c9bc52d111e
Hardware name: Apple Inc. Macmini8,1/Mac-7BA5B2DFE22DDD8C, BIOS 1731.120.10.0.0 (iBridge: 19.16.15071.0.0,0) 04/24/2022
Workqueue: efi_rts_wq efi_call_rts
...
---[ end trace 0000000000000000 ]---
efi: Froze efi_rts_wq and disabled EFI Runtime Services
integrity: Couldn't get size: 0x8000000000000015
integrity: MODSIGN: Couldn't get UEFI db list
efi: EFI Runtime Services are disabled!
integrity: Couldn't get size: 0x8000000000000015
integrity: Couldn't get UEFI dbx list
Fixes: 155ca952c7ca ("efi: Do not import certificates from UEFI Secure Boot for T2 Macs")
Cc: stable@xxxxxxxxxxxxxxx
Cc: Aditya Garg <gargaditya08@xxxxxxxx>
Tested-by: Samuel Jiang <chyishian.jiang@xxxxxxxxx>
Signed-off-by: Orlando Chamberlain <redecorating@xxxxxxxxxxxxxx>
Signed-off-by: Mimi Zohar <zohar@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
security/integrity/platform_certs/load_uefi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/security/integrity/platform_certs/load_uefi.c
+++ b/security/integrity/platform_certs/load_uefi.c
@@ -30,7 +30,7 @@ static const struct dmi_system_id uefi_s
{ UEFI_QUIRK_SKIP_CERT("Apple Inc.", "MacBookAir8,1") },
{ UEFI_QUIRK_SKIP_CERT("Apple Inc.", "MacBookAir8,2") },
{ UEFI_QUIRK_SKIP_CERT("Apple Inc.", "MacBookAir9,1") },
- { UEFI_QUIRK_SKIP_CERT("Apple Inc.", "MacMini8,1") },
+ { UEFI_QUIRK_SKIP_CERT("Apple Inc.", "Macmini8,1") },
{ UEFI_QUIRK_SKIP_CERT("Apple Inc.", "MacPro7,1") },
{ UEFI_QUIRK_SKIP_CERT("Apple Inc.", "iMac20,1") },
{ UEFI_QUIRK_SKIP_CERT("Apple Inc.", "iMac20,2") },
Patches currently in stable-queue which might be from redecorating@xxxxxxxxxxxxxx are
queue-5.4/efi-correct-macmini-dmi-match-in-uefi-cert-quirk.patch
